First of all, let me express that I AM NOT A PROFESSIONAL BARBER.That being said, as a home barber, I do believe in purchasing professional grade barber equipment, the purpose of longevity. There are a lot of new companies getting into the trimmer game, but I buy Andis because they have been around for many years, and have a proven performance record in many professional settings. And most of all, I don't have to worry about finding replacement parts.I have been a long time Andis customer; over 38 years in fact. Although I prefer Wahl clippers, Andis trimmers have always been my go-to. I like their simplicity, blade interchangeability, precision, and most of all power.The price that barbers are charging has gotten out of hand, so I tend to buy clippers and trimmers that I will use 20 years or more. I don't mind spending a bit extra to get professional grade equipment, because the money I save not getting hijacked by the barber more than justifies my rationale.I tend to give myself a full cut and trim about twice a month, but decided to touch up my cuts once a week now. This trimmer will allow me to accomplish that.I did a lot of research before deciding on the Andis T liner GTX clippers. In all honesty, my hair is very short, so these blades are probably overkill. I decided to buy these anyway, just in case I ever decide to grow a beard or grow my hair out.I was very skeptical of buying cordless trimmers, simply because my Andis Outliner II trimmers have been a workhorse for over 30 years. The Outliners are almost impossible to get rid of because of their performance and reliability.The Andis GTX t liners have been a pleasant surprise so far. Right out of the box, they are already sharp. I was looking for these clippers to not have to solid quality feel of the Andis corded models, but I was surprised. These clippers are very solid, and feel great.My main reason for purchasing these trimmers is that I wanted to be able to move around without having to worry about the cord getting caught on something.These trimmers are a part of my lineup. I use the Wahl Magic clips for my main fade. I then use the Outliner II for my forehead line-up. I use these T liners for my edges, neckline, mustache and beard. And finally I use the Andis foil shavers to bald fade. These four units could hold their own in ANY barber shop setting.Finally, when I say that Andis FINALLY gets it, I mean that most people that buy the regular T liners like to modify (skeletize by cutting away the upper portion of the clipper). Andis has already done that with this clipper, and it REALLY looks cool and sleek.Hopefully, these blades will give me many years of performance, but when it comes time to replace them, I feel confident that I will be able to do so with minimal effort.